Hi, I was wondering if anyone knows if this is truly the only one in the world? It is a 1968 Topps Game #4 Hank Aaron Proof card graded by SGC. I am a collector of rare Baseball Cards and was looking for information on this card??
What would the value be? Ebay item
http://www.ebay.com/sch/i.html?_trks...at=0&_from=R40
item #281300391148